JP2019130223A - Medical image diagnostic apparatus and X-ray irradiation control apparatus - Google Patents

Abstract

To reduce an operator's exposure to X-ray during a procedure.SOLUTION: A medical image diagnostic apparatus according to an embodiment includes change means and display control means. The changing means performs control to change an X-ray irradiation condition, in accordance with the positional relationship between an X-ray irradiation region and an object not to be imaged, during X-ray imaging. The display control means controls a display unit to display an X-ray image generated according to the X-ray imaging and an ultrasonic image generated according to ultrasonic imaging.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a medical image diagnostic apparatus and an X-ray irradiation control apparatus.

  The purpose of improving the treatment efficiency by using different types of devices among medical image diagnostic devices such as X-ray diagnostic devices, ultrasonic diagnostic devices, X-ray CT (Computed Tomography) devices, and magnetic resonance imaging devices. Thus, there is a medical image diagnostic system having a plurality of different types of medical image diagnostic apparatuses. For example, when interventional treatment using a catheter is performed, an X-ray diagnostic apparatus and an ultrasonic diagnostic apparatus are used in combination.

  The X-ray diagnostic apparatus transmits X-rays into a subject and images the transmitted image. As means for acquiring an X-ray image, there are “imaging mode” in which relatively strong X-rays are irradiated and “perspective mode” in which relatively weak X-rays are irradiated. The doctor inserts the catheter into the patient while checking the catheter in the blood vessel by X-ray irradiation in the imaging mode or fluoroscopic mode. Then, after reaching the affected part of the catheter, the affected part is imaged from all angles by X-rays. Thereafter, the confirmed affected area is treated with a catheter. In order not to overlook lesions that cannot be confirmed by X-ray fluoroscopy and radiography, a method for identifying an affected area using an ultrasonic diagnostic apparatus has been attracting attention.

  In particular, in the case of catheter treatment for pediatric patients, in order to avoid exposure, the dose of X-rays and the irradiation time must be suppressed as compared with the case of adult patients. Even in such a case, the combined use of the X-ray diagnostic apparatus and the ultrasonic diagnostic apparatus is effective.

JP 2014-54425 A

  The problem to be solved by the present invention is to reduce the operator's X-ray exposure during the procedure.

  The medical image diagnostic apparatus according to the embodiment includes a changing unit and a display control unit. The changing unit controls to change the X-ray irradiation condition according to the positional relationship between the X-ray irradiation region and the non-imaging target during X-ray imaging. The display control means causes the display unit to display an X-ray image generated according to X-ray imaging and an ultrasonic image generated according to ultrasonic imaging.

FIG. 1 is a schematic diagram illustrating a configuration of a medical image diagnostic system according to a first embodiment. FIG. 2 is a diagram illustrating an appearance of the medical image diagnostic system according to the first embodiment. FIG. 3 is a flowchart illustrating a first operation example of the medical image diagnostic system according to the first embodiment. FIG. 4 is a diagram illustrating an example of a superimposed image in the medical image diagnostic system according to the first embodiment. FIG. 5 is a diagram for explaining a positional relationship between an X-ray irradiation region and a non-imaging target in the medical image diagnostic system according to the first embodiment. FIG. 6 is a flowchart illustrating a second operation example of the medical image diagnostic system according to the first embodiment. FIG. 7 is a flowchart illustrating a third operation example of the medical image diagnostic system according to the first embodiment. FIG. 8 is a flowchart illustrating a fourth operation example of the medical image diagnostic system according to the first embodiment. FIG. 9 is a flowchart illustrating a fifth operation example of the medical image diagnostic system according to the first embodiment. FIG. 10 is a flowchart illustrating a sixth operation example of the medical image diagnostic system according to the first embodiment. FIG. 11 is a schematic diagram illustrating a configuration of a medical image diagnostic system according to the second embodiment. FIG. 12 is a schematic diagram illustrating a configuration of a medical image diagnostic system according to a third embodiment.

  Hereinafter, embodiments of a medical image diagnostic apparatus and an X-ray irradiation control apparatus will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic diagram showing a configuration of a medical image diagnostic system according to the first embodiment. FIG. 2 is a diagram illustrating an appearance of the medical image diagnostic system according to the first embodiment.

  1 and 2 show a medical image diagnostic system 1 according to the first embodiment. The medical image diagnostic system 1 includes an ultrasonic diagnostic apparatus 10 and an X-ray diagnostic apparatus 50 as a medical image diagnostic apparatus according to the first embodiment. For example, the X-ray diagnostic apparatus 50 is an X-ray circulatory apparatus, a so-called Angio apparatus.

  The ultrasonic diagnostic apparatus 10 includes an ultrasonic probe 11, an apparatus main body 12, an input interface 13, and a display 14. The configuration of only the apparatus main body 12 may be referred to as an ultrasonic diagnostic apparatus, and a configuration in which at least one of the ultrasonic probe 11, the input interface 13, and the display 14 is added to the apparatus main body 12 is referred to as an ultrasonic diagnostic apparatus. Sometimes called. In the following description, a case will be described in which a configuration including all of the ultrasound probe 11, the apparatus main body 12, the input interface 13, and the display 14 is an ultrasound diagnostic apparatus.

  The ultrasonic probe 11 includes a plurality of minute vibrators (piezoelectric elements) on the front surface, and transmits / receives ultrasonic waves to / from a region including a scan target, for example, a region including a lumen body. Each transducer is an electroacoustic transducer, and has a function of converting an electric pulse into an ultrasonic pulse at the time of transmission and converting a reflected wave into an electric signal (received signal) at the time of reception. The ultrasonic probe 11 is configured to be small and light, and is connected to the apparatus main body 12 via a cable (or wireless communication).

  The ultrasonic probe 11 is classified into a linear type, a convex type, a sector type, and the like depending on the scanning method. The ultrasonic probe 11 includes a 1D array probe in which a plurality of transducers are arranged in a one-dimensional (1D) direction in the azimuth direction and a two-dimensional (2D) in the azimuth direction and the elevation direction due to the difference in the array arrangement dimensions. And 2D array probe in which a plurality of transducers are arranged. The 1D array probe includes a probe in which a small number of transducers are arranged in the elevation direction.

  Here, when a 3D scan, that is, a volume scan is executed, a 2D array probe having a scanning method such as a linear type, a convex type, or a sector type is used as the ultrasonic probe 11. Alternatively, when a volume scan is performed, a 1D probe having a scanning method such as a linear type, a convex type, or a sector type and having a mechanism that mechanically swings in the elevation direction is used as the ultrasonic probe 11. Is done. The latter probe is also called a mechanical 4D probe.

  The apparatus body 12 includes a transmission / reception circuit 31, a B-mode processing circuit 32, a Doppler processing circuit 33, an image generation circuit 34, an image memory 35, a network interface 36, a processing circuit 37, and a storage circuit 38. The circuits 31 to 34 are configured by an application specific integrated circuit (ASIC) or the like. However, it is not limited to that case, and all or part of the functions of the circuits 31 to 34 may be realized by the processing circuit 37 executing a program.

  The transmission / reception circuit 31 includes a transmission circuit and a reception circuit (not shown). The transmission / reception circuit 31 controls transmission directivity and reception directivity in transmission / reception of ultrasonic waves under the control of the processing circuit 37. In addition, although the case where the transmission / reception circuit 31 is provided in the apparatus main body 12 is described, the transmission / reception circuit 31 may be provided in the ultrasonic probe 11 or may be provided in both the apparatus main body 12 and the ultrasonic probe 11. Good.

  The transmission circuit includes a pulse generation circuit, a transmission delay circuit, a pulser circuit, and the like, and supplies a drive signal to the ultrasonic transducer. The pulse generation circuit repeatedly generates rate pulses for forming transmission ultrasonic waves at a predetermined rate frequency. The transmission delay circuit determines the delay time for each piezoelectric vibrator necessary for determining the transmission directivity by focusing the ultrasonic waves generated from the ultrasonic vibrator of the ultrasonic probe 11 into a beam shape. For each rate pulse that occurs. The pulsar circuit applies a drive pulse to the ultrasonic transducer at a timing based on the rate pulse. The transmission delay circuit arbitrarily adjusts the transmission direction of the ultrasonic beam transmitted from the surface of the piezoelectric vibrator by changing the delay time given to each rate pulse.

  The receiving circuit includes an amplifier circuit, an A / D (Analog to Digital) converter, an adder, and the like. The receiving circuit receives an echo signal received by the ultrasonic transducer, performs various processes on the echo signal, and performs an echo. Generate data. The amplifier circuit amplifies the echo signal for each channel and performs gain correction processing. The A / D converter performs A / D conversion on the gain-corrected echo signal and gives a delay time necessary for determining the reception directivity to the digital data. The adder adds echo signals processed by the A / D converter and generates echo data. By the addition processing of the adder, the reflection component from the direction corresponding to the reception directivity of the echo signal is emphasized.

  Under the control of the processing circuit 37, the B-mode processing circuit 32 receives echo data from the receiving circuit, performs logarithmic amplification, envelope detection processing, and the like, and data (in which the signal intensity is expressed by brightness brightness) ( 2D or 3D data) is generated. This data is generally called B-mode data.

  Under the control of the processing circuit 37, the Doppler processing circuit 33 performs frequency analysis on velocity information from echo data from the receiving circuit, extracts blood flow and tissue due to the Doppler effect, and movement state information such as average velocity, dispersion, and power. Is generated for two or more points (two-dimensional or three-dimensional data). This data is generally called Doppler data.

  The image generation circuit 34 generates an ultrasonic image expressed in a predetermined luminance range as image data based on the echo signal received by the ultrasonic probe 11 under the control of the processing circuit 37. For example, the image generation circuit 34 generates a B-mode image in which the intensity of the reflected wave is expressed by luminance from the two-dimensional B-mode data generated by the B-mode processing circuit 32 as an ultrasonic image. In addition, the image generation circuit 34 uses an average velocity image, a dispersion image, a power image, or a combination image representing the movement state information from the two-dimensional Doppler data generated by the Doppler processing circuit 33 as an ultrasonic image. Generate a color Doppler image.

  The image memory 35 includes a two-dimensional memory that is a memory that includes a plurality of memory cells in two axis directions per frame and includes a plurality of frames. The two-dimensional memory as the image memory 35 stores an ultrasonic image related to one frame or a plurality of frames generated by the image generation circuit 34 under the control of the processing circuit 37 as two-dimensional image data.

  The image generation circuit 34 performs three-dimensional reconstruction by performing interpolation processing as necessary on the ultrasonic images arranged in the two-dimensional memory as the image memory 35 under the control of the processing circuit 37. An ultrasonic image is generated as volume data in a three-dimensional memory as the memory 35. A known technique is used as the interpolation processing method.

  The image memory 35 may include a three-dimensional memory that is a memory having a plurality of memory cells in the three-axis directions (X-axis, Y-axis, and Z-axis directions). The three-dimensional memory as the image memory 35 stores the ultrasonic image generated by the image generation circuit 34 as volume data under the control of the processing circuit 37.

  The network interface 36 implements various information communication protocols according to the network form. The network interface 36 connects the apparatus main body 12 and devices such as the external X-ray diagnostic apparatus 50 according to these various protocols. An electrical connection or the like via an electronic network can be applied to this connection. Here, the electronic network means an entire information communication network using telecommunications technology. In addition to a wireless / wired hospital backbone LAN (Local Area Network) and the Internet network, a telephone communication line network, an optical fiber communication network. , Cable communication network, satellite communication network, WiFi, Bluetooth (registered trademark) and the like.

  The network interface 36 may implement various protocols for contactless wireless communication. In this case, the apparatus main body 12 can directly transmit / receive data to / from the ultrasonic probe 11 without using a network.

  The processing circuit 37 means a dedicated or general-purpose CPU (Central Processing Unit), MPU (Micro Processor Unit), or GPU (Graphics Processing Unit), ASIC, programmable logic device, or the like. Examples of the programmable logic device include a simple programmable logic device (SPLD), a complex programmable logic device (CPLD), and a field programmable gate array (FPGA). Can be mentioned.

  Further, the processing circuit 37 may be configured by a single circuit or a combination of a plurality of independent circuit elements. In the latter case, the storage circuit 38 may be provided for each circuit element, or the single storage circuit 38 may store a program corresponding to the functions of a plurality of circuit elements.

  The storage circuit 38 includes a semiconductor memory element such as a RAM (Random Access Memory) and a flash memory, a hard disk, an optical disk, and the like. The storage circuit 38 may be configured by a portable medium such as a USB (Universal Serial Bus) memory and a DVD (Digital Video Disk). The storage circuit 38 stores various processing programs used in the processing circuit 37 (including application programs as well as an OS (Operating System) and the like) and data necessary for executing the programs. In addition, the OS may include a GUI (Graphical User Interface) that uses a lot of graphics for displaying information on the display 14 for the operator and can perform basic operations by the input interface 13.

  The input interface 13 includes a circuit for inputting a signal from an input device that can be operated by the ultrasonic engineer D2, and an input device. The input device includes a trackball, a switch, a mouse, a keyboard, a touch pad that performs an input operation by touching a scanning surface, a touch screen in which a display screen and a touch pad are unified, a non-contact input circuit using an optical sensor, And an audio input circuit or the like. When the input device is operated by the ultrasonic engineer D2, the input interface 13 generates an input signal corresponding to the operation and outputs it to the processing circuit 37.

  The display 14 is configured by a general display output device such as a liquid crystal display or an OLED (Organic Light Emitting Diode) display. The display 14 includes a GPU (Graphics Processing Unit) and a VRAM (Video RAM). The display 14 displays an ultrasonic image (for example, a live image) requested to be displayed by the processing circuit 37 under the control of the processing circuit 37.

  The position sensor 15 detects a plurality of pieces of position information of the ultrasonic probe 11 in time series and outputs it to the apparatus main body 12. As the position sensor 15, there are a type of sensor attached to the ultrasonic probe 11 and a type of sensor provided separately from the ultrasonic probe 11. The latter sensor is an optical sensor, which captures feature points of the ultrasonic probe 11 that is a measurement target from a plurality of positions, and detects each position of the ultrasonic probe 11 based on the principle of triangulation. Hereinafter, the case where the position sensor 15 is the former sensor will be described.

  The position sensor 15 is attached to the ultrasonic probe 11, detects its own position information, and outputs it to the apparatus main body 12. The position information of the position sensor 15 can also be regarded as the position information of the ultrasonic probe 11. The position information of the ultrasonic probe 11 includes the position and posture (tilt angle) of the ultrasonic probe 11. For example, the attitude of the ultrasonic probe 11 can be detected by a magnetic field transmitter (not shown) sequentially transmitting a triaxial magnetic field and sequentially receiving the magnetic field by the position sensor 15. The position sensor 15 also detects a three-axis gyro sensor that detects a three-axis angular velocity in a three-dimensional space, a three-axis acceleration sensor that detects a three-axis acceleration in a three-dimensional space, and a three-axis geomagnetism in a three-dimensional space. A so-called 9-axis sensor including at least one of the 3-axis geomagnetic sensors may be used.

  The X-ray diagnostic apparatus 50 includes a high voltage supply apparatus 51, an X-ray irradiation apparatus 52, an X-ray detection apparatus 53, an input interface 54, a display 55, a network interface 56, a processing circuit 57, a storage circuit 58, and a C arm 59 (FIG. 2). And a bed 60 (shown only in FIG. 2).

  The high voltage supply device 51 supplies high voltage power to the X-ray tube of the X-ray irradiation device 52 under the control of the processing circuit 57.

  The X-ray irradiation device 52 is provided at one end of the C arm 59. The X-ray irradiation device 52 includes an X-ray tube (X-ray source) and a movable diaphragm device. The X-ray tube receives supply of high voltage power from the high voltage supply device 51 and generates X-rays according to the conditions of high voltage power. Under the control of the processing circuit 57, the movable diaphragm device movably supports diaphragm blades made of a substance that shields X-rays at the X-ray irradiation port of the X-ray tube. A X-ray tube quality adjustment filter (not shown) that adjusts the X-ray quality generated by the X-ray tube may be provided on the front surface of the X-ray tube.

  The X-ray detection device 53 is provided at the other end of the C arm 59 so as to face the X-ray irradiation device 52. The X-ray detection device 53 can perform an operation along the SID (Source-Image Distance) direction, that is, a back-and-forth operation, under the control of the processing circuit 57. Further, the X-ray detection device 53 can perform an operation, that is, a rotation operation along the rotation direction centered on the SID direction under the control of the processing circuit 57.

  The input interface 54 has a configuration equivalent to that of the input interface 13. When the input interface 54 is operated by the operator D (the operator D1, the ultrasonic engineer D2, and the assistant) in the treatment room, an operation signal is sent to the processing circuit 57.

  The display 55 has a configuration equivalent to that of the display 14. The display 55 displays an ultrasonic image generated according to ultrasonic imaging and an X-ray image generated according to X-ray imaging. For example, the display 55 displays a superimposed image (for example, illustrated in FIG. 4) in which an ultrasonic image is superimposed on an X-ray image or displays an X-ray image and an ultrasonic image in parallel during X-ray imaging.

  The network interface 56 has a configuration equivalent to the network interface 36.

  The processing circuit 57 has a configuration equivalent to that of the processing circuit 37.

  The memory circuit 58 has a configuration equivalent to that of the memory circuit 38.

  The C arm 59 supports the X-ray irradiation device 52 and the X-ray detection device 53 so as to face each other. The C arm 59 can rotate in the arc direction, that is, in the direction of CRA (Cranial View) and in the direction of CAU (Caudal View) under the control of the processing circuit 57 or according to manual operation. . In addition, the C-arm 59 rotates under the control of the processing circuit 57 or according to manual operation, ie, rotation of the fulcrum center, that is, rotation of the LAO (Left Anterior Oblique View) direction and RAO (Right Anterior Oblique View) direction. Corresponds to rotation. The rotation of the C arm 59 in the arc direction corresponds to the rotation of the LAO direction and the rotation of the RAO direction, and the rotation of the C arm 59 around the fulcrum is the rotation of the CRA direction and the rotation of the CAU direction. You may have the structure corresponding to.

  In FIG. 2, the C-arm structure provided in the X-ray diagnostic apparatus 50 shows a case where the X-ray irradiation apparatus 52 is an under table positioned below the top plate of the bed 60. However, the present invention is not limited to this, and the X-ray irradiation device 52 may be an overtable positioned above the top plate. Further, the C arm 59 may be replaced with an Ω arm, or an Ω arm may be combined.

  The bed 60 includes a top plate on which a subject, for example, a patient P can be placed. The top plate can operate along the X-axis direction, that is, slide in the left-right direction under the control of the processing circuit 57. The top plate can operate along the Y-axis direction, that is, slide in the up-and-down direction under the control of the processing circuit 57. The top plate can move along the Z-axis direction, that is, slide in the head and foot direction, under the control of the processing circuit 57. The top plate can also perform a rolling operation and a tilt operation under the control of the processing circuit 57.

  Next, functions of the medical image diagnostic system 1 will be described.

  The processing circuit 37 reads out and executes a program stored in the storage circuit 38 or directly incorporated in the processing circuit 37, thereby realizing the ultrasonic imaging function U. Hereinafter, a case where the function U functions as software will be described as an example. However, the function U may be realized by a circuit such as an ASIC provided in the ultrasonic diagnostic apparatus 10.

  The ultrasonic imaging function U includes a function of controlling the transmission / reception circuit 31, the B-mode processing circuit 32, the Doppler processing circuit 33, the image generation circuit 34, and the image memory 35 to execute ultrasonic imaging. The ultrasound imaging function U includes a function of displaying an ultrasound image generated according to ultrasound imaging on the display 14 and a function of transmitting to the X-ray diagnostic apparatus 50 via the network interface 36.

  The processing circuit 57 reads out and executes a program stored in the storage circuit 58 or directly incorporated in the processing circuit 57, so that the X-ray imaging function R, the first changing function Q1, and the second changing function Q2 are executed. And the display control function Q3. Hereinafter, the case where the functions R and Q1 to Q3 function as software will be described as an example. However, all or part of the functions R and Q1 to Q3 is performed by a circuit such as an ASIC provided in the X-ray diagnostic apparatus 50. It may be realized.

  The X-ray imaging function R includes a function of controlling the high voltage supply device 51, the X-ray irradiation device 52, and the X-ray detection device 53 to execute X-ray imaging. The X-ray imaging function R includes a function of causing the display 55 to display an X-ray image generated according to the X-ray imaging together with the ultrasonic image transmitted from the ultrasonic diagnostic apparatus 10. X-ray imaging includes X-ray imaging in the fluoroscopic mode and X-ray imaging in the imaging mode. Here, the imaging mode refers to a mode in which relatively strong X-rays are irradiated to obtain an X-ray image with clearer contrast, and the fluoroscopic mode refers to irradiation of relatively weak X-rays continuously or in pulses. It means the mode to do.

  The first change function Q1 includes a function of controlling to change the X-ray irradiation condition according to the positional relationship between the X-ray irradiation region and the non-imaging target during the X-ray imaging by the X-ray imaging function R. The first change function Q1 is based on the X-ray image generated according to the X-ray imaging, and the X-ray irradiation area and the non-imaging target (for example, the operator D1, the ultrasonic engineer D2, and the operator D such as an assistant) The positional relationship with the hand and the ultrasonic probe 11 or the like is specified. Identification of the non-imaging target based on the X-ray image may be performed by a pattern matching technique. Or the 1st change function Q1 is based on the positional information (position and angle) of the ultrasonic probe 11, and the positional information (position and angle) of the X-ray diagnostic apparatus 50 (for example, C arm 59). The positional relationship between the irradiation area and the non-photographing target is specified. Based on the position information of the ultrasonic probe 11, the positions of the hand of the operator D such as the operator D1, the ultrasonic engineer D2, and the assistant can be estimated.

  The first change function Q1 acquires encoder information from a rotary encoder attached to a roller for rotating the C arm 59. Then, the first change function Q1 calculates position information regarding the C arm 59 based on the acquired encoder information. The position information of the X-ray diagnostic apparatus 50 is not limited to the position information of the C arm 59. For example, the position information of the X-ray diagnostic apparatus 50 may include position information of the X-ray irradiation apparatus 52 (including the movable diaphragm apparatus) and the X-ray detection apparatus 53. In this case, the first change function Q1 acquires encoder information from a rotary encoder attached to a roller for operating the X-ray irradiation device 52 and the X-ray detection device 53 in the SID direction.

  The second change function Q2 includes a function of controlling to change the X-ray irradiation condition according to the state of ultrasonic imaging during X-ray imaging by the X-ray imaging function R. For example, the second change function Q2 performs control so as to change the X-ray irradiation condition in accordance with the freeze state or the unfreeze state of the live display of the ultrasonic image obtained by ultrasonic imaging. Here, the X-ray irradiation conditions are also called X-ray conditions. For example, the X-ray irradiation conditions include tube voltage and tube current of the X-ray irradiation device 52, irradiation time, incident dose, and the like.

  Note that the processing circuit 57 may implement at least one of the first change function Q1 and the second change function Q2. The case where the processing circuit 57 implements the first change function Q1 will be described later with reference to FIGS. 3 to 8, and the case where the processing circuit 57 implements the second change function Q2 will be described later with reference to FIGS. To do.

  The display control function Q3 acquires an ultrasound image generated according to the ultrasound imaging by the ultrasound imaging function U from the ultrasound diagnostic apparatus 10, and also generates an X-ray image generated according to the X-ray imaging by the X-ray imaging function R. Includes the ability to get. The display control function Q3 includes a function for displaying the acquired ultrasonic image and X-ray image on the display 55. For example, the display control function Q3 generates a superimposed image in which an ultrasonic image is superimposed on an X-ray image, and displays the superimposed image on the display 55. For example, the display control function Q3 displays an X-ray image and an ultrasonic image on the display 55. In the following description, it is assumed that the former, that is, the display control function Q3 generates a superimposed image.

  Next, the operation of the medical image diagnostic system 1 will be described. The medical diagnostic imaging system 1 is applied when interventional treatment using a catheter is performed in SHD (Structural Heart Disease). The medical diagnostic imaging system 1 is applied when a procedure is advanced by making full use of not only an X-ray image obtained from the X-ray diagnostic apparatus 50 but also an ultrasonic image obtained from the ultrasonic diagnostic apparatus 10 when the intervention treatment is advanced. Is done.

  For example, the medical diagnostic imaging system 1 is used for catheter treatment for mitral regurgitation (MR) using MitralClip. In that case, an operator such as a doctor checks the blood flow status by transesophageal echocardiography (TEE) with ultrasound images while grasping the positional relationship between a device such as a clip and cardiac tissue during X-ray imaging. , Device placement.

(First operation example according to the first embodiment)
FIG. 3 is a diagram illustrating a first operation example of the medical image diagnostic system 1 as a flowchart. In FIG. 3, reference numerals with numbers added to “ST” indicate steps in the flowchart. FIG. 4 is a diagram illustrating an example of a superimposed image.

  The X-ray imaging function R of the X-ray diagnostic apparatus 50 controls the high voltage supply device 51, the X-ray irradiation device 52, the X-ray detection device 53, etc., and starts X-ray imaging for the patient P in the fluoroscopic mode. (Step ST1).

  Further, the ultrasound imaging function U of the ultrasound diagnostic apparatus 10 controls the ultrasound probe 11 and the like to start ultrasound imaging for the patient P (step ST2). The display control function Q3 acquires an X-ray image generated in accordance with the X-ray imaging started in step ST1 and an ultrasonic image generated in accordance with the ultrasonic imaging started in step ST2, and obtains an X-ray image and an ultrasonic image. A sound wave image is displayed on the display 55. For example, the display control function Q3 generates a superimposed image that is superimposed on the ultrasonic image on the X-ray image and displays the superimposed image on the display 55.

  When generating a superimposed image, the position information of the ultrasound probe 11 on the ultrasound diagnostic apparatus 10 side and the position information of the C-arm 59 on the X-ray diagnosis apparatus 50 side are aligned. For example, while the focal position of the X-ray irradiation device 52 provided at one end of the C-arm 59 is specified as the viewpoint position in the volume data rendering (volume rendering or surface rendering) processing of the ultrasonic image, The imaging direction toward the center position of the X-ray detector 53 provided at the other end of the C arm 59 is specified as the line-of-sight direction in the rendering processing of the volume data of the ultrasonic image. Then, rendering processing is performed on the volume data of the ultrasonic image based on the specified viewpoint position and line-of-sight direction, and is superimposed on the X-ray image.

  The first change function Q1 performs image analysis on an X-ray image of a predetermined frame generated according to the X-ray imaging in the fluoroscopic mode started in step ST1, and sets a non-imaging target (for example, the operator D1) in the X-ray irradiation region. Then, it is determined whether or not the ultrasonic engineer D2 and the operator's hand such as an assistant or the ultrasonic probe 11) have entered (step ST3).

  If YES in step ST3, that is, if it is determined that a non-imaging target has entered the X-ray irradiation region, the X-ray imaging function R controls the high voltage supply device 51 and is started in step ST1. X-ray imaging in the fluoroscopic mode is stopped (interrupted) (step ST4). An example of the superimposed image when NO is determined in step ST3 is shown in FIG. 4A, and an example of the superimposed image when YES is determined in step ST3 is shown in FIG. 4B. The images shown in FIGS. 4A and 4B are images in which the ultrasound image IU is superimposed on the X-ray image IX including the catheter image C. In FIG. 4B, it is determined that a non-imaging target has entered the X-ray irradiation region.

  Returning to the description of FIG. 3, the first changing function Q1 determines whether or not the non-imaging target has been withdrawn from the X-ray irradiation region based on the position information of the ultrasonic probe 11 and the position information of the C arm 59. Judgment is made (step ST5). This is because, in the determination of step ST5, X-ray imaging is interrupted, so that it is not possible to determine evacuation of non-imaging targets based on image analysis.

  FIG. 5 is a diagram for explaining the positional relationship between the X-ray irradiation region and the non-imaging target.

  FIG. 5A shows an X-ray irradiation region W when the X-ray irradiation device 52 is located below the top plate of the bed 60. FIG. 5B shows the X-ray irradiation region W when the X-ray irradiation device 52 is located on the top of the bed 60.

  As shown in FIGS. 5A and 5B, the position information of the X-ray irradiation region W is a three-dimensional region calculated from the position information regarding the C arm 59. The X-ray irradiation region W is a three-dimensional region based on the focal position O of the X-ray irradiation device 52 and the positions F1 to F4 on the detection surface of the X-ray detection device 53 determined by the movable diaphragm device. Further, the position information of the operator D (such as the operator D1 and the ultrasonic engineer D2) may be directly detected by an image sensor such as kinect (registered trademark) or the position of the ultrasonic probe 11 by the position sensor 15. It may be estimated from the position information.

  Returning to the description of FIG. 3, when the determination in step ST <b> 5 is YES, that is, when it is determined that the non-imaging target is withdrawn from the X-ray irradiation region, the X-ray imaging function R controls the high voltage supply device 51. Then, X-ray imaging in the fluoroscopic mode interrupted in step ST4 is resumed (step ST6). The display control function Q3 causes the display 55 to display an X-ray image generated according to the X-ray imaging restarted at Step ST6 and an ultrasonic image generated according to the ultrasonic imaging started at Step ST2. For example, the display control function Q3 generates a superimposed image that is superimposed on the ultrasonic image on the X-ray image and displays the superimposed image on the display 55.

  The X-ray imaging function R determines whether or not to end the X-ray imaging in the fluoroscopic mode started in step ST1 or the X-ray imaging in the fluoroscopic mode restarted in step ST6 (step ST7). If YES in step ST7, that is, if it is determined that X-ray imaging in the fluoroscopic mode is to be terminated, the X-ray imaging function R is resumed by X-ray imaging in the fluoroscopic mode started in step ST1 or in step ST6. The X-ray imaging in the fluoroscopic mode thus completed is terminated (step ST8).

  The ultrasonic imaging function U determines whether or not to end the ultrasonic imaging started in step ST2 (step ST9). If YES in step ST9, that is, if it is determined that the ultrasonic imaging is to be ended, the ultrasonic imaging function U ends the ultrasonic imaging started in step ST2 (step ST10).

  If the determination in step ST3 is NO, that is, if it is determined that the non-imaging target has not entered the X-ray irradiation area, the X-ray imaging function R is the X-ray imaging in the fluoroscopic mode started in step ST1, or Then, it is determined whether or not to end the X-ray imaging in the fluoroscopic mode resumed in step ST6 (step ST7).

  If the determination in step ST5 is NO, that is, if it is determined that the non-imaging target is not retracted from the X-ray irradiation area, the first change function Q1 shows a frame in which the non-imaging object is retracted from the X-ray irradiation area. Until step ST5 is repeated.

  When the determination in step ST7 is NO, that is, when it is determined not to end the X-ray imaging in the fluoroscopic mode, the first changing function Q1 generates the X-ray image generated according to the X-ray imaging in the fluoroscopic mode in the next frame. Is analyzed to determine whether or not a non-imaging target has entered the X-ray irradiation region (step ST3).

  If NO in step ST9, that is, if it is determined not to end the ultrasonic imaging, the ultrasonic imaging function U repeats the determination in step ST9 until there is an instruction to end imaging.

  According to the first operation example of the medical image diagnostic system 1 shown in FIG. 3, the positional relationship between the X-ray irradiation region and the non-imaging target is specified based on the image analysis of the X-ray image and the positional information. As a result, the X-ray irradiation can be interrupted and restarted, so that the X-ray exposure of the non-imaging target during the period from the interruption to the restart of the X-ray irradiation can be reduced. In addition, according to the first operation example of the medical image diagnostic system 1, there is an effect that the cooperation and control of the ultrasonic diagnostic apparatus 10 and the X-ray diagnostic apparatus 50 are facilitated.

(Second operation example according to the first embodiment)
FIG. 6 is a diagram illustrating a second operation example of the medical image diagnostic system 1 as a flowchart. In FIG. 6, reference numerals with numbers added to “ST” indicate steps in the flowchart. 6 differs from FIG. 3 in that image analysis of the X-ray image is not performed.

  In FIG. 6, the same steps as those shown in FIG.

  The first change function Q1 determines whether or not a non-imaging target has entered the X-ray irradiation region based on the position information of the ultrasonic probe 11 and the position information of the C arm 59 (step ST13). The positional relationship between the X-ray irradiation region and the non-imaging target is as described with reference to FIG.

  According to the second operation example of the medical image diagnostic system 1 shown in FIG. 6, the positional relationship between the X-ray irradiation region and the non-imaging target is specified based on the position information, and the X-ray irradiation is interrupted based on the result. Since it can be resumed, it is possible to reduce the X-ray exposure of the non-imaging target between the interruption of the X-ray irradiation and the restart. In addition, according to the second operation example of the medical image diagnostic system 1, there is an effect that the cooperation and control of the ultrasonic diagnostic apparatus 10 and the X-ray diagnostic apparatus 50 are facilitated.

(Third operation example according to the first embodiment)
FIG. 7 is a diagram illustrating a third operation example of the medical image diagnostic system 1 as a flowchart. In FIG. 7, reference numerals with numbers added to “ST” indicate steps in the flowchart. 7 and 6 of FIG. 7 is that X-ray imaging in the imaging mode is performed instead of X-ray imaging in the fluoroscopic mode.

  In FIG. 7, the same steps as those shown in FIG. 3 and FIG.

  The X-ray imaging function R of the X-ray diagnostic apparatus 50 controls the high voltage supply device 51, the X-ray irradiation device 52, the X-ray detection device 53, etc., and starts X-ray imaging for the patient P in the imaging mode. (Step ST21).

  If YES in step ST3, that is, if it is determined that a non-imaging target has entered the X-ray irradiation area, the X-ray imaging function R controls the high voltage supply device 51 to set the X-ray irradiation conditions. Change, that is, the X-ray imaging in the imaging mode started in step ST21 is switched to X-ray imaging in the fluoroscopic mode (step ST24). According to step ST24, unlike in step ST4, a perspective image of a plurality of frames can be collected, so that the operator can observe the frame retrospectively by frame advance. The display control function Q3 causes the display 55 to display an X-ray image generated according to the X-ray imaging in the fluoroscopic mode after switching at step ST24 and an ultrasonic image generated according to the ultrasonic imaging started at step ST2. .

  The first change function Q1 performs image analysis on the X-ray image of a predetermined frame generated according to the X-ray imaging in the fluoroscopic mode after switching in step ST24, and determines whether or not the non-imaging target is withdrawn from the X-ray irradiation region. Judgment is made (step ST25). If the determination in step ST25 is YES, that is, if it is determined that the non-imaging target has been withdrawn from the X-ray irradiation area, the X-ray imaging function R controls the high voltage supply device 51 to set the X-ray irradiation conditions. Change, that is, X-ray imaging in the fluoroscopic mode after switching in step ST24 is switched to X-ray imaging in the imaging mode (step ST26). The display control function Q3 causes the display 55 to display an X-ray image generated according to the X-ray imaging in the imaging mode after switching at step ST26 and an ultrasonic image generated according to the ultrasonic imaging started at step ST2. .

  According to the third operation example of the medical image diagnostic system 1 shown in FIG. 7, the positional relationship between the X-ray irradiation region and the non-imaging target is specified based on the image analysis of the X-ray image, and the result of the X-ray Since the irradiation conditions can be changed, it is possible to reduce the X-ray exposure of the non-imaging target while suppressing the X-ray intensity. In addition, according to the third operation example of the medical image diagnostic system 1, there is an effect that the cooperation and control of the ultrasonic diagnostic apparatus 10 and the X-ray diagnostic apparatus 50 are facilitated.

  Note that, according to the third operation example of the medical image diagnostic system 1 shown in FIG. 7, position information of the apparatus is not required. However, in FIG. 7, as in step ST4 (shown in FIGS. 3 and 6), the X-ray imaging function R may interrupt X-ray imaging in the imaging mode started in step ST21 (step ST24). . In that case, the first changing function Q1 determines whether or not the non-imaging target has been withdrawn from the X-ray irradiation area based on the position information of the apparatus (step ST25), and the X-ray imaging function R supplies the high voltage. The apparatus 51 is controlled to resume the X-ray imaging in the imaging mode interrupted in step ST24 (step ST26).

(Fourth operation example according to the first embodiment)
FIG. 8 is a diagram illustrating a fourth operation example of the medical image diagnostic system 1 as a flowchart. In FIG. 8, reference numerals with numerals added to “ST” indicate steps in the flowchart. The difference from FIG. 7 in FIG. 8 is that image analysis of the X-ray image is not performed.

  In FIG. 8, the same steps as those shown in FIG. 3, FIG. 6, and FIG.

  According to the fourth operation example of the medical image diagnostic system 1 shown in FIG. 8, the positional relationship between the X-ray irradiation region and the non-imaging target is specified based on the position information, and the X-ray irradiation condition is changed based on the result. Therefore, the X-ray exposure of the non-imaging target while the X-ray intensity is suppressed can be reduced. In addition, according to the fourth operation example of the medical image diagnostic system 1, there is an effect that the cooperation and control of the ultrasonic diagnostic apparatus 10 and the X-ray diagnostic apparatus 50 are facilitated.

(Fifth operation example according to the first embodiment)
FIG. 9 is a diagram illustrating a fifth operation example of the medical image diagnostic system 1 as a flowchart. In FIG. 9, reference numerals with numerals added to “ST” indicate steps in the flowchart. 5 and FIG. 6 to FIG. 8 is that the X-ray irradiation conditions of the X-ray diagnostic apparatus 50 are changed according to the state of the ultrasonic diagnostic apparatus 10.

  In FIG. 9, the same steps as those shown in FIG. 3 and FIGS.

  The second change function Q2 determines whether or not the live display of the ultrasonic image by the ultrasonic imaging started in step ST2 is frozen (step ST43). For example, the second changing function Q2 determines whether or not the live display of the ultrasonic image is frozen based on the operation of the input interface 13 by the ultrasonic engineer D2 holding the ultrasonic probe 11. When the live display of the ultrasonic image is frozen, the X-ray imaging is interrupted (step ST4). Here, when X-ray imaging is interrupted by a freeze instruction for live display of an ultrasound image, ultrasound is superior to X-rays. The case where ultrasound is dominant means, for example, when a catheter is inserted into the coronary artery, or when prognostic observation of the state in which the valve is held after placement of the MitralClip.

  The second change function Q2 determines whether or not the freeze in step ST43 is released and the live display of the ultrasonic image by ultrasonic imaging is unfrozen (step ST45). For example, the second changing function Q2 determines whether or not the live display of the ultrasonic image has been unfrozen based on the operation of the input interface 13 by the ultrasonic engineer D2 holding the ultrasonic probe 11.

  Here, when X-ray imaging is resumed in response to an unfreeze instruction for live display of an ultrasound image, X-rays are superior to ultrasound. X-ray is dominant when, for example, the catheter is inserted into the coronary artery of the heart from the lower limbs, when contrast medium is injected occasionally, when confirming the direction of catheter advancement at the coronary artery bifurcation, This means when a device such as MitralClip is placed in the valve. The determination of whether X-rays are dominant may be based on the operation of a foot switch for instructing X-ray irradiation. On the other hand, whether the ultrasound is dominant is determined based on whether the ultrasound probe 11 is left in the air, the ultrasound image does not include an image of the affected area of the patient P, or the body surface of the patient P of the ultrasound probe 11. What is necessary is just to be based on the contact state, that is, whether the ultrasonic image includes the affected part of the patient P.

  According to the fifth operation example of the medical image diagnostic system 1 shown in FIG. 9, the state of the ultrasonic diagnostic apparatus 10 is specified, and X-ray irradiation can be interrupted and restarted according to the result. It is possible to reduce the X-ray exposure of the non-imaging target until the restart. In addition, according to the fifth operation example of the medical image diagnostic system 1, there is an effect that the cooperation and control of the ultrasonic diagnostic apparatus 10 and the X-ray diagnostic apparatus 50 are facilitated.

(Sixth operation example according to the first embodiment)
FIG. 10 is a diagram illustrating a sixth operation example of the medical image diagnostic system 1 as a flowchart. In FIG. 10, reference numerals with numerals added to “ST” indicate steps in the flowchart. A difference from FIG. 9 of FIG. 10 is that X-ray imaging in the imaging mode is performed instead of X-ray imaging in the fluoroscopic mode.

  In FIG. 10, the same steps as those shown in FIG. 3 and FIGS.

  According to the sixth operation example of the medical image diagnostic system 1 shown in FIG. 10, the state of the ultrasonic diagnostic apparatus 10 is specified, and the X-ray irradiation conditions can be changed according to the result, so that the X-ray intensity is suppressed. It is possible to reduce the X-ray exposure of non-imaging objects during. In addition, according to the sixth operation example of the medical image diagnostic system 1, there is an effect that the cooperation and control of the ultrasonic diagnostic apparatus 10 and the X-ray diagnostic apparatus 50 are facilitated.

  In the above description, the functions Q1 to Q3 have been described as being realized by the processing circuit 57 of the X-ray diagnostic apparatus 50. However, the present invention is not limited to this case. For example, all or part of the functions Q1 to Q3 may be realized by the processing circuit 37 of the ultrasonic diagnostic apparatus 10 or realized by an apparatus other than the ultrasonic diagnostic apparatus 10 and the X-ray diagnostic apparatus 50. It may be done. Hereinafter, a case where all of the functions Q1 to Q3 are realized by the processing circuit 37 of the ultrasonic diagnostic apparatus 10 will be described with reference to FIG. 11, and all of the functions Q1 to Q3 are performed with the ultrasonic diagnostic apparatus 10 and the X-ray. A case where it is realized by a processing circuit of an X-ray irradiation control device other than the diagnostic device 50 will be described with reference to FIG.

(Second Embodiment)
FIG. 11 is a schematic diagram illustrating a configuration of a medical image diagnostic system according to the second embodiment.

  FIG. 11 shows a medical image diagnostic system 1A according to the second embodiment. The medical image diagnostic system 1A includes an ultrasonic diagnostic apparatus 10A as a medical image diagnostic apparatus according to the second embodiment and an X-ray diagnostic apparatus 50A.

  In FIG. 11, the same members as those in FIG.

  The processing circuit 37 of the ultrasonic diagnostic apparatus 10A implements an ultrasonic imaging function U, a first change function Q1, a second change function Q2, and a display control function Q3 by executing a program. The processing circuit 57 of the X-ray diagnostic apparatus 50A implements an X-ray imaging function R by executing a program.

  The functions U, R, Q1 to Q3 have been described in the first embodiment with reference to FIGS.

  According to the medical image diagnostic system 1A shown in FIG. 11, the position information and the state of the ultrasonic diagnostic apparatus 10 are specified, and the X-ray irradiation is interrupted and restarted or the X-ray irradiation conditions are changed according to the result. Therefore, it is possible to reduce the X-ray exposure of non-imaging objects. The medical image diagnostic system 1A also has an effect that the cooperation and control of the ultrasonic diagnostic apparatus 10A and the X-ray diagnostic apparatus 50A are facilitated.

(Third embodiment)
FIG. 12 is a schematic diagram illustrating a configuration of a medical image diagnostic system according to the third embodiment.

  FIG. 12 shows a medical image diagnostic system 1B according to the third embodiment. The medical image diagnostic system 1B includes an ultrasonic diagnostic apparatus 10B, an X-ray diagnostic apparatus 50B, and an X-ray irradiation control apparatus 80 according to the third embodiment. The X-ray irradiation control device 80 is connected so as to be able to communicate with the ultrasonic diagnostic device 10B and the X-ray diagnostic device 50B.

  In FIG. 12, the same members as those in FIG. Similarly to the ultrasonic diagnostic apparatuses 10 (shown in FIG. 1) and 10A (shown in FIG. 11), the ultrasonic diagnostic apparatus 10B includes an ultrasonic probe 11, an apparatus body 12, an input interface 13, a display 14, and a position. Although the sensor 15 is provided, the configuration other than the network interface 36 and the processing circuit 37 is not shown. Similarly, the X-ray diagnostic apparatus 50B is similar to the X-ray diagnostic apparatus 50 (shown in FIG. 1) and 50A (shown in FIG. 11), as is the high voltage supply device 51, the X-ray irradiation device 52, and the X-ray detection device 53. The input interface 54, the display 55, the network interface 56, the processing circuit 57, and the storage circuit 58 are provided, but the configuration other than the network interface 56 and the processing circuit 57 is not shown.

  The X-ray irradiation control device 80 includes a network interface 86, a processing circuit 87, and a storage circuit 88. The X-ray irradiation control device 80 may include an input interface having the same configuration as the input interfaces 13 and 54 (shown in FIG. 1) and a display having the same configuration as the displays 14 and 55 (shown in FIG. 1). Good.

  The processing circuit 37 of the ultrasonic diagnostic apparatus 10B implements the ultrasonic imaging function U by executing a program. The processing circuit 57 of the X-ray diagnostic apparatus 50B implements an X-ray imaging function R by executing a program.

  The processing circuit 87 of the X-ray irradiation control device 80 reads out and executes a program stored in the storage circuit 88 or directly incorporated in the processing circuit 87, whereby the first change function Q1 and the second change function. Q2 and the display control function Q3 are realized. Hereinafter, the case where the functions Q1 to Q3 function as software will be described as an example. However, part or all of the functions Q1 to Q3 is realized by a circuit such as an ASIC provided in the X-ray irradiation control device 80. Also good.

  The functions U, R, Q1 to Q3 have been described in the first embodiment with reference to FIGS.

  According to the medical image diagnostic system 1B shown in FIG. 12, the position information and the state of the ultrasonic diagnostic apparatus 10 are specified, and the X-ray irradiation is interrupted and resumed or the X-ray irradiation conditions are changed according to the result. Therefore, it is possible to reduce the X-ray exposure of non-imaging objects. Further, according to the medical image diagnostic system 1B, there is an effect that the cooperation and control of the ultrasonic diagnostic apparatus 10B and the X-ray diagnostic apparatus 50B are facilitated by using the X-ray irradiation control apparatus 80.

  According to at least one embodiment described above, the operator's X-ray exposure during the procedure can be reduced.

  The ultrasound imaging function U is an example of ultrasound imaging means. The X-ray imaging function R is an example of an X-ray imaging unit. The first change function Q1 and the second change function Q2 are examples of changing means. The display control function Q3 is an example of display control means.

  In addition, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

1, 1A, 1B Medical image diagnostic system 10, 10A, 10B Ultrasound diagnostic apparatus 37, 57, 87 Processing circuit 50, 50A, 50B X-ray diagnostic apparatus 80 X-ray irradiation control apparatus Q1 First change function Q2 Second change function Q3 Display control function

Claims (11)

Changing means for controlling to change the irradiation condition of the X-ray according to the positional relationship between the X-ray irradiation region and the non-imaging target during X-ray imaging;
Display control means for displaying on the display unit an X-ray image generated according to the X-ray imaging and an ultrasonic image generated according to the ultrasonic imaging;
A medical image diagnostic apparatus. The changing unit specifies a positional relationship between the X-ray irradiation region and the non-imaging target based on the X-ray image.
The medical image diagnostic apparatus according to claim 1. The changing means includes the X-ray irradiation area and the non-imaging target based on the position information of the arm supporting the X-ray irradiation unit and the X-ray detection unit and the position information of the ultrasonic probe as the non-imaging target. Identify the positional relationship with
The medical image diagnostic apparatus according to claim 1. Changing means for controlling to change the irradiation condition of the X-ray according to the state of ultrasonic imaging during X-ray imaging;
Display control means for displaying on the display unit an X-ray image generated according to the X-ray imaging and an ultrasonic image generated according to the ultrasonic imaging;
A medical image diagnostic apparatus. The changing means controls to change the irradiation condition of the X-ray according to the freeze state of the live display of the ultrasonic image by the ultrasonic imaging or the unfreeze state.
The medical image diagnostic apparatus according to claim 4. When the X-ray imaging is X-ray imaging in a fluoroscopic mode,
The changing means changes the X-ray irradiation condition by interrupting the X-ray imaging.
The medical image diagnostic apparatus according to any one of claims 1 to 5. When the X-ray imaging is X-ray imaging in an imaging mode,
The changing means changes the X-ray irradiation condition by changing the imaging mode to a fluoroscopic mode or by stopping the X-ray imaging.
The medical image diagnostic apparatus according to any one of claims 1 to 5. An X-ray irradiation unit for irradiating X-rays for the X-ray imaging;
An X-ray detector for detecting the X-ray
X-ray imaging means for controlling the X-ray irradiation unit and the X-ray detection unit to perform the X-ray imaging;
The medical diagnostic imaging apparatus according to claim 1, further comprising: An ultrasonic imaging means for controlling the ultrasonic probe to perform the ultrasonic imaging;
The medical diagnostic imaging apparatus according to claim 1, further comprising: An X-ray irradiation control device connected so as to be able to communicate with an ultrasonic diagnostic device and an X-ray diagnostic device,
Changing means for controlling to change the irradiation condition of the X-ray according to the positional relationship between the X-ray irradiation region and the non-imaging target during X-ray imaging;
Display control means for displaying on the display unit an X-ray image generated according to the X-ray imaging and an ultrasonic image generated according to the ultrasonic imaging;
An X-ray irradiation control device. An X-ray irradiation control device connected so as to be able to communicate with an ultrasonic diagnostic device and an X-ray diagnostic device,
Changing means for controlling to change the irradiation condition of the X-ray according to the state of ultrasonic imaging during X-ray imaging;
Display control means for displaying on the display unit an X-ray image generated according to the X-ray imaging and an ultrasonic image generated according to the ultrasonic imaging;
An X-ray irradiation control device.

Images